An innovative redesign brings advanced grip ergonomics, enhanced durability, and precision control to the trusted STK series, now available in three optimized models.

Pahrump, NV –– The STK Series by Armscor / Rock Island Armory is releasing its newly redesigned line, offering elevated craftsmanship, performance-driven updates, and premium materials. The STK100 Ultra, STK150, and STK200 bring new functionality and classic design together to deliver a truly advanced experience for concealed carry and everyday users.

The STK series stands out with its unique all-aluminum 7075 T6 frame construction—moving away from traditional polymer materials—and a refined 1911-style grip angle, ensuring comfort and control that firearms enthusiasts trust. With the addition of an extended beaver-tail, slide bite is eliminated, providing a smooth shooting experience across all models.

One of the most notable upgrades is the flat-faced trigger, optimized to deliver a crisp and responsive pull that many users already find superior to factory alternatives. The STK100 Ultra, the series flagship, includes more aggressive side grip panels and a checkered frame for added confidence. Designed for maximum speed and efficiency, the Ultra model integrates a new magwell for faster, smoother reloads.

“We’re thrilled to unveil the newly redesigned STK series, which honors the heritage of classic firearm design while embracing modern innovations and user-focused details. These updates bring a level of performance and control that truly stand out in today’s market,” said Martin Tuason, President and CEO of Armscor / Rock Island Armory.

Other features that set the STK series apart include:

• Enhanced Sight Compatibility: The STK series is equipped with a larger optic footprint and co-witness suppressor-height sights for adaptable use with iron sights, even in situations where optics may fail.
• Ambidextrous Functionality: The STK150 and STK200 models feature an ambidextrous magazine release, ideal for left- and right-handed users.
• Industry-Leading Compatibility: Compatible with Glock G3 parts (except the magazine release), Glock magazines, and many Glock holsters, making STK firearms versatile choices for dedicated users.
• Durability and Finish: The PECVD finished barrel, slide, and chassis provide resilience and wear resistance, complemented by a hard-anodized frame finish.
• Enhanced Accessories: Each STK model includes RMR and RMSc optic plates, detachable grip panels, and a high-quality soft case with an integrated magazine pouch and Velcro holder.

For more information on Armscor and Rock Island Armory products, visit www.armscor.com.

About Armscor / Rock Island Armory / RIA Imports / RIA-USA

Armscor and Rock Island Armory is a leading global manufacturer of ammunition and firearms, as well as one of the largest producers of 1911 pistols in the world. RIA Imports brings quality firearms from around the world to consumers at an attractive price point and are covered by the same Limited Lifetime Warranty as company-made products. RIA-USA is the company’s U.S.-based manufacturing facility. With an unprecedented focus on customer service and satisfaction, Armscor has become a driving force in the American and worldwide firearms industry, exporting to over 50 countries on 6 continents.

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Heather Covrig

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Epicosity

Phone: 605.275.3742

Email: heather@epicosity.com

Website: epicosity.com